ui-shared.c

   1 /* ui-shared.c: common web output functions
   2  *
   3  * Copyright (C) 2006 Lars Hjemli
   4  *
   5  * Licensed under GNU General Public License v2
   6  *   (see COPYING for full license text)
   7  */
   8
   9 #include "cgit.h"
  10 #include "html.h"
  11
  12 const char cgit_doctype[] =
  13 "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\"\n"
  14 "  \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">\n";
  15
  16 static char *http_date(time_t t)
  17 {
  18         static char day[][4] =
  19                 {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
  20         static char month[][4] =
  21                 {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
  22                  "Jul", "Aug", "Sep", "Oct", "Now", "Dec"};
  23         struct tm *tm = gmtime(&t);
  24         return fmt("%s, %02d %s %04d %02d:%02d:%02d GMT", day[tm->tm_wday],
  25                    tm->tm_mday, month[tm->tm_mon], 1900+tm->tm_year,
  26                    tm->tm_hour, tm->tm_min, tm->tm_sec);
  27 }
  28
  29 static long ttl_seconds(long ttl)
  30 {
  31         if (ttl<0)
  32                 return 60 * 60 * 24 * 365;
  33         else
  34                 return ttl * 60;
  35 }
  36
  37 void cgit_print_error(char *msg)
  38 {
  39         html("<div class='error'>");
  40         html_txt(msg);
  41         html("</div>\n");
  42 }
  43
  44 char *cgit_rooturl()
  45 {
  46         if (ctx.cfg.virtual_root)
  47                 return fmt("%s/", ctx.cfg.virtual_root);
  48         else
  49                 return ctx.cfg.script_name;
  50 }
  51
  52 char *cgit_repourl(const char *reponame)
  53 {
  54         if (ctx.cfg.virtual_root) {
  55                 return fmt("%s/%s/", ctx.cfg.virtual_root, reponame);
  56         } else {
  57                 return fmt("?r=%s", reponame);
  58         }
  59 }
  60
  61 char *cgit_fileurl(const char *reponame, const char *pagename,
  62                    const char *filename, const char *query)
  63 {
  64         char *tmp;
  65         char *delim;
  66
  67         if (ctx.cfg.virtual_root) {
  68                 tmp = fmt("%s/%s/%s/%s", ctx.cfg.virtual_root, reponame,
  69                           pagename, (filename ? filename:""));
  70                 delim = "?";
  71         } else {
  72                 tmp = fmt("?url=%s/%s/%s", reponame, pagename,
  73                           (filename ? filename : ""));
  74                 delim = "&";
  75         }
  76         if (query)
  77                 tmp = fmt("%s%s%s", tmp, delim, query);
  78         return tmp;
  79 }
  80
  81 char *cgit_pageurl(const char *reponame, const char *pagename,
  82                    const char *query)
  83 {
  84         return cgit_fileurl(reponame,pagename,0,query);
  85 }
  86
  87 const char *cgit_repobasename(const char *reponame)
  88 {
  89         /* I assume we don't need to store more than one repo basename */
  90         static char rvbuf[1024];
  91         int p;
  92         const char *rv;
  93         strncpy(rvbuf,reponame,sizeof(rvbuf));
  94         if(rvbuf[sizeof(rvbuf)-1])
  95                 die("cgit_repobasename: truncated repository name '%s'", reponame);
  96         p = strlen(rvbuf)-1;
  97         /* strip trailing slashes */
  98         while(p && rvbuf[p]=='/') rvbuf[p--]=0;
  99         /* strip trailing .git */
 100         if(p>=3 && !strncmp(&rvbuf[p-3],".git",4)) {
 101                 p -= 3; rvbuf[p--] = 0;
 102         }
 103         /* strip more trailing slashes if any */
 104         while( p && rvbuf[p]=='/') rvbuf[p--]=0;
 105         /* find last slash in the remaining string */
 106         rv = strrchr(rvbuf,'/');
 107         if(rv)
 108                 return ++rv;
 109         return rvbuf;
 110 }
 111
 112 char *cgit_currurl()
 113 {
 114         if (!ctx.cfg.virtual_root)
 115                 return ctx.cfg.script_name;
 116         else if (ctx.qry.page)
 117                 return fmt("%s/%s/%s/", ctx.cfg.virtual_root, ctx.qry.repo, ctx.qry.page);
 118         else if (ctx.qry.repo)
 119                 return fmt("%s/%s/", ctx.cfg.virtual_root, ctx.qry.repo);
 120         else
 121                 return fmt("%s/", ctx.cfg.virtual_root);
 122 }
 123
 124 static char *repolink(char *title, char *class, char *page, char *head,
 125                       char *path)
 126 {
 127         char *delim = "?";
 128
 129         html("<a");
 130         if (title) {
 131                 html(" title='");
 132                 html_attr(title);
 133                 html("'");
 134         }
 135         if (class) {
 136                 html(" class='");
 137                 html_attr(class);
 138                 html("'");
 139         }
 140         html(" href='");
 141         if (ctx.cfg.virtual_root) {
 142                 html_attr(ctx.cfg.virtual_root);
 143                 if (ctx.cfg.virtual_root[strlen(ctx.cfg.virtual_root) - 1] != '/')
 144                         html("/");
 145                 html_attr(ctx.repo->url);
 146                 if (ctx.repo->url[strlen(ctx.repo->url) - 1] != '/')
 147                         html("/");
 148                 if (page) {
 149                         html(page);
 150                         html("/");
 151                         if (path)
 152                                 html_attr(path);
 153                 }
 154         } else {
 155                 html(ctx.cfg.script_name);
 156                 html("?url=");
 157                 html_attr(ctx.repo->url);
 158                 if (ctx.repo->url[strlen(ctx.repo->url) - 1] != '/')
 159                         html("/");
 160                 if (page) {
 161                         html(page);
 162                         html("/");
 163                         if (path)
 164                                 html_attr(path);
 165                 }
 166                 delim = "&amp;";
 167         }
 168         if (head && strcmp(head, ctx.repo->defbranch)) {
 169                 html(delim);
 170                 html("h=");
 171                 html_attr(head);
 172                 delim = "&amp;";
 173         }
 174         return fmt("%s", delim);
 175 }
 176
 177 static void reporevlink(char *page, char *name, char *title, char *class,
 178                         char *head, char *rev, char *path)
 179 {
 180         char *delim;
 181
 182         delim = repolink(title, class, page, head, path);
 183         if (rev && strcmp(rev, ctx.qry.head)) {
 184                 html(delim);
 185                 html("id=");
 186                 html_attr(rev);
 187         }
 188         html("'>");
 189         html_txt(name);
 190         html("</a>");
 191 }
 192
 193 void cgit_tree_link(char *name, char *title, char *class, char *head,
 194                     char *rev, char *path)
 195 {
 196         reporevlink("tree", name, title, class, head, rev, path);
 197 }
 198
 199 void cgit_log_link(char *name, char *title, char *class, char *head,
 200                    char *rev, char *path, int ofs, char *grep, char *pattern)
 201 {
 202         char *delim;
 203
 204         delim = repolink(title, class, "log", head, path);
 205         if (rev && strcmp(rev, ctx.qry.head)) {
 206                 html(delim);
 207                 html("id=");
 208                 html_attr(rev);
 209                 delim = "&";
 210         }
 211         if (grep && pattern) {
 212                 html(delim);
 213                 html("qt=");
 214                 html_attr(grep);
 215                 delim = "&";
 216                 html(delim);
 217                 html("q=");
 218                 html_attr(pattern);
 219         }
 220         if (ofs > 0) {
 221                 html(delim);
 222                 html("ofs=");
 223                 htmlf("%d", ofs);
 224         }
 225         html("'>");
 226         html_txt(name);
 227         html("</a>");
 228 }
 229
 230 void cgit_commit_link(char *name, char *title, char *class, char *head,
 231                       char *rev)
 232 {
 233         if (strlen(name) > ctx.cfg.max_msg_len && ctx.cfg.max_msg_len >= 15) {
 234                 name[ctx.cfg.max_msg_len] = '\0';
 235                 name[ctx.cfg.max_msg_len - 1] = '.';
 236                 name[ctx.cfg.max_msg_len - 2] = '.';
 237                 name[ctx.cfg.max_msg_len - 3] = '.';
 238         }
 239         reporevlink("commit", name, title, class, head, rev, NULL);
 240 }
 241
 242 void cgit_refs_link(char *name, char *title, char *class, char *head,
 243                     char *rev, char *path)
 244 {
 245         reporevlink("refs", name, title, class, head, rev, path);
 246 }
 247
 248 void cgit_snapshot_link(char *name, char *title, char *class, char *head,
 249                         char *rev, char *archivename)
 250 {
 251         reporevlink("snapshot", name, title, class, head, rev, archivename);
 252 }
 253
 254 void cgit_diff_link(char *name, char *title, char *class, char *head,
 255                     char *new_rev, char *old_rev, char *path)
 256 {
 257         char *delim;
 258
 259         delim = repolink(title, class, "diff", head, path);
 260         if (new_rev && strcmp(new_rev, ctx.qry.head)) {
 261                 html(delim);
 262                 html("id=");
 263                 html_attr(new_rev);
 264                 delim = "&amp;";
 265         }
 266         if (old_rev) {
 267                 html(delim);
 268                 html("id2=");
 269                 html_attr(old_rev);
 270         }
 271         html("'>");
 272         html_txt(name);
 273         html("</a>");
 274 }
 275
 276 void cgit_patch_link(char *name, char *title, char *class, char *head,
 277                      char *rev)
 278 {
 279         reporevlink("patch", name, title, class, head, rev, NULL);
 280 }
 281
 282 void cgit_object_link(struct object *obj)
 283 {
 284         char *page, *arg, *url;
 285
 286         if (obj->type == OBJ_COMMIT) {
 287                 cgit_commit_link(fmt("commit %s", sha1_to_hex(obj->sha1)), NULL, NULL,
 288                                  ctx.qry.head, sha1_to_hex(obj->sha1));
 289                 return;
 290         } else if (obj->type == OBJ_TREE) {
 291                 page = "tree";
 292                 arg = "id";
 293         } else if (obj->type == OBJ_TAG) {
 294                 page = "tag";
 295                 arg = "id";
 296         } else {
 297                 page = "blob";
 298                 arg = "id";
 299         }
 300
 301         url = cgit_pageurl(ctx.qry.repo, page,
 302                            fmt("%s=%s", arg, sha1_to_hex(obj->sha1)));
 303         html_link_open(url, NULL, NULL);
 304         htmlf("%s %s", typename(obj->type),
 305               sha1_to_hex(obj->sha1));
 306         html_link_close();
 307 }
 308
 309 void cgit_print_date(time_t secs, char *format)
 310 {
 311         char buf[64];
 312         struct tm *time;
 313
 314         if (!secs)
 315                 return;
 316         time = gmtime(&secs);
 317         strftime(buf, sizeof(buf)-1, format, time);
 318         html_txt(buf);
 319 }
 320
 321 void cgit_print_age(time_t t, time_t max_relative, char *format)
 322 {
 323         time_t now, secs;
 324
 325         if (!t)
 326                 return;
 327         time(&now);
 328         secs = now - t;
 329
 330         if (secs > max_relative && max_relative >= 0) {
 331                 cgit_print_date(t, format);
 332                 return;
 333         }
 334
 335         if (secs < TM_HOUR * 2) {
 336                 htmlf("<span class='age-mins'>%.0f min.</span>",
 337                       secs * 1.0 / TM_MIN);
 338                 return;
 339         }
 340         if (secs < TM_DAY * 2) {
 341                 htmlf("<span class='age-hours'>%.0f hours</span>",
 342                       secs * 1.0 / TM_HOUR);
 343                 return;
 344         }
 345         if (secs < TM_WEEK * 2) {
 346                 htmlf("<span class='age-days'>%.0f days</span>",
 347                       secs * 1.0 / TM_DAY);
 348                 return;
 349         }
 350         if (secs < TM_MONTH * 2) {
 351                 htmlf("<span class='age-weeks'>%.0f weeks</span>",
 352                       secs * 1.0 / TM_WEEK);
 353                 return;
 354         }
 355         if (secs < TM_YEAR * 2) {
 356                 htmlf("<span class='age-months'>%.0f months</span>",
 357                       secs * 1.0 / TM_MONTH);
 358                 return;
 359         }
 360         htmlf("<span class='age-years'>%.0f years</span>",
 361               secs * 1.0 / TM_YEAR);
 362 }
 363
 364 void cgit_print_docstart(char *title, struct cacheitem *item)
 365 {
 366         html("Content-Type: text/html; charset=" PAGE_ENCODING "\n");
 367         htmlf("Last-Modified: %s\n", http_date(item->st.st_mtime));
 368         htmlf("Expires: %s\n", http_date(item->st.st_mtime +
 369                                          ttl_seconds(item->ttl)));
 370         html("\n");
 371         html(cgit_doctype);
 372         html("<html xmlns='http://www.w3.org/1999/xhtml' xml:lang='en' lang='en'>\n");
 373         html("<head>\n");
 374         html("<title>");
 375         html_txt(title);
 376         html("</title>\n");
 377         htmlf("<meta name='generator' content='cgit %s'/>\n", cgit_version);
 378         if (ctx.cfg.robots && *ctx.cfg.robots)
 379                 htmlf("<meta name='robots' content='%s'/>\n", ctx.cfg.robots);
 380         html("<link rel='stylesheet' type='text/css' href='");
 381         html_attr(ctx.cfg.css);
 382         html("'/>\n");
 383         html("</head>\n");
 384         html("<body>\n");
 385 }
 386
 387 void cgit_print_docend()
 388 {
 389         html("</td>\n</tr>\n</table>\n</body>\n</html>\n");
 390 }
 391
 392 int print_branch_option(const char *refname, const unsigned char *sha1,
 393                         int flags, void *cb_data)
 394 {
 395         char *name = (char *)refname;
 396         html_option(name, name, ctx.qry.head);
 397         return 0;
 398 }
 399
 400 int print_archive_ref(const char *refname, const unsigned char *sha1,
 401                        int flags, void *cb_data)
 402 {
 403         struct tag *tag;
 404         struct taginfo *info;
 405         struct object *obj;
 406         char buf[256], *url;
 407         unsigned char fileid[20];
 408         int *header = (int *)cb_data;
 409
 410         if (prefixcmp(refname, "refs/archives"))
 411                 return 0;
 412         strncpy(buf, refname+14, sizeof(buf));
 413         obj = parse_object(sha1);
 414         if (!obj)
 415                 return 1;
 416         if (obj->type == OBJ_TAG) {
 417                 tag = lookup_tag(sha1);
 418                 if (!tag || parse_tag(tag) || !(info = cgit_parse_tag(tag)))
 419                         return 0;
 420                 hashcpy(fileid, tag->tagged->sha1);
 421         } else if (obj->type != OBJ_BLOB) {
 422                 return 0;
 423         } else {
 424                 hashcpy(fileid, sha1);
 425         }
 426         if (!*header) {
 427                 html("<h1>download</h1>\n");
 428                 *header = 1;
 429         }
 430         url = cgit_pageurl(ctx.qry.repo, "blob",
 431                            fmt("id=%s&amp;path=%s", sha1_to_hex(fileid),
 432                                buf));
 433         html_link_open(url, NULL, "menu");
 434         html_txt(strlpart(buf, 20));
 435         html_link_close();
 436         return 0;
 437 }
 438
 439 void add_hidden_formfields(int incl_head, int incl_search, char *page)
 440 {
 441         char *url;
 442
 443         if (!ctx.cfg.virtual_root) {
 444                 url = fmt("%s/%s", ctx.qry.repo, page);
 445                 if (ctx.qry.path)
 446                         url = fmt("%s/%s", url, ctx.qry.path);
 447                 html_hidden("url", url);
 448         }
 449
 450         if (incl_head && strcmp(ctx.qry.head, ctx.repo->defbranch))
 451                 html_hidden("h", ctx.qry.head);
 452
 453         if (ctx.qry.sha1)
 454                 html_hidden("id", ctx.qry.sha1);
 455         if (ctx.qry.sha2)
 456                 html_hidden("id2", ctx.qry.sha2);
 457
 458         if (incl_search) {
 459                 if (ctx.qry.grep)
 460                         html_hidden("qt", ctx.qry.grep);
 461                 if (ctx.qry.search)
 462                         html_hidden("q", ctx.qry.search);
 463         }
 464 }
 465
 466 void cgit_print_pageheader(char *title, int show_search)
 467 {
 468         static const char *default_info = "This is cgit, a fast webinterface for git repositories";
 469         int header = 0;
 470         char *url;
 471
 472         html("<table id='layout' summary=''>\n");
 473         html("<tr><td id='sidebar'>\n");
 474         html("<table class='sidebar' cellspacing='0' summary=''>\n");
 475         html("<tr><td class='sidebar'>\n<a href='");
 476         html_attr(cgit_rooturl());
 477         htmlf("'><img src='%s' alt='cgit'/></a>\n",
 478               ctx.cfg.logo);
 479         html("</td></tr>\n<tr><td class='sidebar'>\n");
 480         if (ctx.repo) {
 481                 html("<h1 class='first'>");
 482                 html_txt(strrpart(ctx.repo->name, 20));
 483                 html("</h1>\n");
 484                 html_txt(ctx.repo->desc);
 485                 if (ctx.repo->owner) {
 486                         html("<h1>owner</h1>\n");
 487                         html_txt(ctx.repo->owner);
 488                 }
 489                 html("<h1>navigate</h1>\n");
 490                 reporevlink(NULL, "summary", NULL, "menu", ctx.qry.head,
 491                             NULL, NULL);
 492                 cgit_log_link("log", NULL, "menu", ctx.qry.head, NULL, NULL,
 493                               0, NULL, NULL);
 494                 cgit_tree_link("tree", NULL, "menu", ctx.qry.head,
 495                                ctx.qry.sha1, NULL);
 496                 cgit_commit_link("commit", NULL, "menu", ctx.qry.head,
 497                               ctx.qry.sha1);
 498                 cgit_diff_link("diff", NULL, "menu", ctx.qry.head,
 499                                ctx.qry.sha1, ctx.qry.sha2, NULL);
 500                 cgit_patch_link("patch", NULL, "menu", ctx.qry.head,
 501                                 ctx.qry.sha1);
 502
 503                 for_each_ref(print_archive_ref, &header);
 504
 505                 if (ctx.repo->clone_url || ctx.cfg.clone_prefix) {
 506                         html("<h1>clone</h1>\n");
 507                         if (ctx.repo->clone_url)
 508                                 url = ctx.repo->clone_url;
 509                         else
 510                                 url = fmt("%s%s", ctx.cfg.clone_prefix,
 511                                           ctx.repo->url);
 512                         html("<a class='menu' href='");
 513                         html_attr(url);
 514                         html("' title='");
 515                         html_attr(url);
 516                         html("'>\n");
 517                         html_txt(strrpart(url, 20));
 518                         html("</a>\n");
 519                 }
 520
 521                 html("<h1>branch</h1>\n");
 522                 html("<form method='get' action=''>\n");
 523                 add_hidden_formfields(0, 1, ctx.qry.page);
 524 //              html("<table summary='branch selector' class='grid'><tr><td id='branch-dropdown-cell'>");
 525                 html("<select name='h' onchange='this.form.submit();'>\n");
 526                 for_each_branch_ref(print_branch_option, ctx.qry.head);
 527                 html("</select>\n");
 528 //              html("</td><td>");
 529                 html("<noscript><input type='submit' id='switch-btn' value='switch'/></noscript>\n");
 530 //              html("</td></tr></table>");
 531                 html("</form>\n");
 532
 533                 html("<h1>search</h1>\n");
 534                 html("<form method='get' action='");
 535                 if (ctx.cfg.virtual_root)
 536                         html_attr(cgit_fileurl(ctx.qry.repo, "log",
 537                                                ctx.qry.path, NULL));
 538                 html("'>\n");
 539                 add_hidden_formfields(1, 0, "log");
 540                 html("<select name='qt'>\n");
 541                 html_option("grep", "log msg", ctx.qry.grep);
 542                 html_option("author", "author", ctx.qry.grep);
 543                 html_option("committer", "committer", ctx.qry.grep);
 544                 html("</select>\n");
 545                 html("<input class='txt' type='text' name='q' value='");
 546                 html_attr(ctx.qry.search);
 547                 html("'/>\n");
 548                 html("</form>\n");
 549         } else {
 550                 if (!ctx.cfg.index_info || html_include(ctx.cfg.index_info))
 551                         html(default_info);
 552         }
 553
 554         html("</td></tr></table></td>\n");
 555
 556         html("<td id='content'>\n");
 557 }
 558
 559
 560 void cgit_print_snapshot_start(const char *mimetype, const char *filename,
 561                                struct cacheitem *item)
 562 {
 563         htmlf("Content-Type: %s\n", mimetype);
 564         htmlf("Content-Disposition: inline; filename=\"%s\"\n", filename);
 565         htmlf("Last-Modified: %s\n", http_date(item->st.st_mtime));
 566         htmlf("Expires: %s\n", http_date(item->st.st_mtime +
 567                                          ttl_seconds(item->ttl)));
 568         html("\n");
 569 }
 570
 571 void cgit_print_filemode(unsigned short mode)
 572 {
 573         if (S_ISDIR(mode))
 574                 html("d");
 575         else if (S_ISLNK(mode))
 576                 html("l");
 577         else if (S_ISGITLINK(mode))
 578                 html("m");
 579         else
 580                 html("-");
 581         html_fileperm(mode >> 6);
 582         html_fileperm(mode >> 3);
 583         html_fileperm(mode);
 584 }
 585
 586 /* vim:set sw=8: */